WillDo Jet Thrusters

[Willallison]

Does anyone have any experience with the WillDo Jet thrusters?

[baeckmo]

Due to the principle of design (high speed, low flow jet), the force/power ratio is considerably lower than with an axial prop in a tunnel.

[Willallison]

Yes - thanks Baekmo, a quick look at their specs indicates that they are somewhat less efficient than a traditional thruster (6kW for a 40kgf vs 2.2kW for a 42 kgf Lewmar, for instance!).
However, there is limited draft and space in the application I am considering and a couple of their units may be one of the few thruster options that can fit.